Max Length of Kitchen waste pipe ?

[Dave D]

Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.
2)I am unable to make it slope down the whole way, what can be done ?

Cheeers
dd

[Bob Minchin]

Post by Dave D
Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.
2)I am unable to make it slope down the whole way, what can be done ?
Cheeers
dd

I'm no expert but 10m of such a small bore pipe is far too long.
Kitchen waste carries a lot of greasy gunge wich will cool and solidify
in a long run.
Slope or fall on a drain pipe is essential. I feel you must find a route
with adequate fall and for larger pipe.
As for a solution, only you can know the range of possibilities offered
by your property. You may have to run to a nearby outside wall in 40mm,
into a gully/trap and then 110mm underground to the main drain system.
make sure you have enough access/rodding points etc for future cleaning.

Sorry if this is not what you might want to hear!

Bob

[Dave Liquorice]

Post by Bob Minchin
I'm no expert but 10m of such a small bore pipe is far too long.

I'd agree. Our current kitchen waste (plus W/Mc) is about 10m long,
has a section with naff all if not negative fall and is starting to
get very slow... I cleared it out about 3 years ago, I'm not looking
forward to doing it again. Kitchen drains get *really* *seriously*
foul with anderobic decompostion.

Post by Bob Minchin
Kitchen waste carries a lot of greasy gunge wich will cool and
solidify in a long run.

Not to mention the filler from washing powders from the washing
machine. Great lumps of white crumbly stuff from the last clean out,
along with the evil black slime.

Post by Bob Minchin
I feel you must find a route with adequate fall and for larger pipe.

Listen to this man. I'll be changing ours to 50mm and ensuring that it
has a proper fall all the time. This might not be easy due to the
route and crossing doorways but it's going to happen. Indeed I might
do this work in preference to clearing it out again...

[PoP]

On Mon, 29 Dec 2003 22:41:23 +0000 (GMT), "Dave Liquorice"

Post by Dave Liquorice
I'd agree. Our current kitchen waste (plus W/Mc) is about 10m long,
has a section with naff all if not negative fall and is starting to
get very slow... I cleared it out about 3 years ago, I'm not looking
forward to doing it again. Kitchen drains get *really* *seriously*
foul with anderobic decompostion.

If you have a good wet 'n dry vacuum cleaner you can put it on blow
and maybe push the gubbins out that way.

Only you might need to be a bit careful that this doesn't pressurise
the stack - you wouldn't want waste being returned to the loo, or
worse still filling up the bath! ;)

PoP

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[Dave Liquorice]

Post by PoP
If you have a good wet 'n dry vacuum cleaner you can put it on blow
and maybe push the gubbins out that way.

I doubt it, the stuff is really sticky and gungey and 10M is a very
long pipe.

The other thing when dealing with this sort of situation is not to let
any bits bigger than a pea get flushed down the waste as sure as eges
is eggs it block the final tiny hole left in all the grunge half way
down the longest run and then instead of a slow drain you have no
drain... BTDTGTTS

[The Natural Philosopher]

Post by Dave Liquorice

Post by Bob Minchin
I'm no expert but 10m of such a small bore pipe is far too long.

I'd agree. Our current kitchen waste (plus W/Mc) is about 10m long,
has a section with naff all if not negative fall and is starting to
get very slow... I cleared it out about 3 years ago, I'm not looking
forward to doing it again. Kitchen drains get *really* *seriously*
foul with anderobic decompostion.

This is a case for a half a canister of solid caustic soda and a kettle
of boiling water chaps! Kills 100% of known germs, and thats just teh
beginning...

Post by Dave Liquorice

Post by Bob Minchin
Kitchen waste carries a lot of greasy gunge wich will cool and
solidify in a long run.

Not to mention the filler from washing powders from the washing
machine. Great lumps of white crumbly stuff from the last clean out,
along with the evil black slime.

Post by Bob Minchin
I feel you must find a route with adequate fall and for larger pipe.

Listen to this man. I'll be changing ours to 50mm and ensuring that it
has a proper fall all the time. This might not be easy due to the
route and crossing doorways but it's going to happen. Indeed I might
do this work in preference to clearing it out again...

'Buy cheap, buy twice'.

Yup. Its always quicker to do it the longer way...

Some time ago, I discovered how easy it is to e.g. chip into plaster,
lay ccables, cover with plaster/filler, sand smooth and repaint.

What is the POINT of surface mounting wires....?

Plumbing MUST be done to spec. Otherwise it simply DOES NOT WORK.

Even if this involves chipping up concrete floors, and punching through
brick walls.

Accept it, plan it, get on with it, and sort it out properly. And
redecorate afterwards.

[Dave Liquorice]

Post by The Natural Philosopher
This is a case for a half a canister of solid caustic soda and a
kettle of boiling water chaps! Kills 100% of known germs, and thats
just teh beginning...

See my other recent post, if it can be garanteed to disolve/emulsify
the grunge then OK but if it weakens it an lumps break off, bad news
time...

[Sneezy]

Post by Dave D
Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.
2)I am unable to make it slope down the whole way, what can be done ?
Cheeers
dd

Just my story but - my kitchen waste pipe runs around the inside of the
kitchen, through the internal kitchen wall, and joins onto the waste pipe
for the bath (inside the property, under the bath). It has a "slope" of
about 2mm. Needless to say it's partially blocked and the stench in the
bathroom on a morning requires a strong stomach. It's a Council property so
what can you expect. I was foolish enough to ask for it unblocking -
Council sent two men, one with a cloth to block the overflow and a second
with a plunger. Sigh.

john

[take away nojunk]

I a>

Post by Dave D
Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.
2)I am unable to make it slope down the whole way, what can be done ?

Find another way, you are asking for trouble using long runs, small bore pipe
and no fall !!!!!!
Don't do it is my recommendation, along with a million others i suspect, there
must be another way.

[Peter Taylor]

there must be another way.

How about a Saniflo? :o)

[The Natural Philosopher]

Post by Dave D
Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.

No, not really, but long rns are NOT advisable at 40mm bore.

Post by Dave D
2)I am unable to make it slope down the whole way, what can be done ?

You are fucked.

Post by Dave D
Cheeers
dd

[Bob Minchin]

Post by The Natural Philosopher

Post by Dave D
Hullo
I will be running 40mm pipe from a new kitchen location it will have a
sink and washing machine .....
1) Is there a maximum length I should be running this pipe ? it is
going to be around 10 metres.

No, not really, but long rns are NOT advisable at 40mm bore.

Post by Dave D
2)I am unable to make it slope down the whole way, what can be done ?

You are fucked.

Is this a technical pumbing term?

Bob

Post by The Natural Philosopher

Post by Dave D
Cheeers
dd